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Finding the Fourth Proportional to 61,651.71, 85,095.54 and 36,161.82

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Solution

The fourth proportional to 61,651.71, 85,095.54 and 36,161.82 is: 49,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,651.71 : 85,095.54 = 36,161.82 : x
  2. Step 2: Convert to fraction form
    61,651.71/85,095.54 = 36,161.82/x
  3. Step 3: Cross multiply
    61,651.71x = 85,095.54 × 36,161.82
  4. Step 4: Simplify right side
    61,651.71x = 3,077,209,600.28
  5. Step 5: Solve for x
    x = 3,077,209,600.28/61,651.71
  6. Step 6: Final answer
    x = 49,912.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.